Power-lift tractor-lister.



W. S. GRAHAM.

POWER LIFT TRACTOR LISTER. APPLICATION FILED SEPT. 11. um.

Patented Mair. 19, 191&

4 SHEETS-SHEET l.

W. S. GRAHAM.

POWER LIFT TRACTOR LISTER.

APPLICATION FILED SEPT. I l. 1917.

Patented Mar. 19, 1918.

4 SHEETS-SHEET 2.

W. S. GRAHAM.

POWER LIFT TRACTOR LISTER- APPLICATION man SEPT-ll. I917.

Patented Mar. 19, 1918.

4 SHEETS-SHEET 3.

W. S. GRAHAM.

POWER LIFT TRACTOR LISTER.

APPLICATION FILED SEPT. H. 1917. 1359,51 1. Patented Mar.19,19l&

-1- SHEETS-SHEET 4.

WILLIAM S. GRAHAM, 0F CANTON, ILLINOIS, ASSIGNOR T0 PARLIN 85 ORENDORFFCOMPANY, or CANTON, ILLINOIS, A CORPORATION or ILLINOIS.-

POWER-LIFT TRACTOR-LISTER.

Application filed'septeniber 11, 1917.

T0 alt whom it may concern:

Be it :known that 1, WILLIAM S. GRAHAM, a citizen of the United States,and a resident of Canton, in the county of Fulton and State of.Illinois,-,have invented certainnew and useful Improvements inPower-Lift Tractor-Listers, of which the following is aspeciiieat'ioin'reference beinghad to the accompanying drawings.

My invention relates to improvements in agricultural implements andparticularly to improvements in lister plows, and ithasfor oneof itsobjects the provision of a form and arrangement of parts by which greatstrength is secured without undue weight. It is another object of myinvention to provide a two-row machine of this type capable of beingadjusted laterally for rows of different distances apart. It is anotherobject of my invention toprovide'new and improved means for raising andloweringthe plows by power from the machine or from one of the groundwheels, and to provide also new and improved means for transmittingpower to the seed dropping mecha nisms.- It is another object of myinvention to provide a new and improved arrange merit of framework andsupporting wheels whereby each of the wheels is caused to bear properlyupon the ground irrespective of any irregularities of the surface. It isanother objcct of my invention to provide new and improved means foradjusting the suction of plows, and new and improved means forregulating the depth at which the plows shall run in the ground, theregulating means for either plow being adjustable independently of theother plow. It is an other object of my invention to improve'machines ofthis type in sundry details hereinafter pointed out. The preferred meansby which I have accomplished byseveral objects are illustrated in thedrawings and are hereinafter specifically described. That which Ibelieve to be new and desire to cover by this application is set forthin'the claims.

In the drawings Figure 1 is a side view of a machine embodying myimprovements showing the plows in their lowered operative position, oneof the supporting wheels at the forward end of the machine being omittedfor clearness of illustration.

Specification of Letters Patent.

Patented Mar. 19, 1918'.

Serial No. 190,757.

Fig. 2 is a view similar to Fig. 1, but showingt-he plows in the rraised 1110138193,?-

tive position for turning at the end of a row or for transportation; 7

Fig. 3 is an enlarged detail, beinga fragmentary-sectional view takensubstantially online 3-3 of Fig. 2;

Fig. a is a top or plan view of the machine as shown in Fig.1;

Fig. 5 is an enlarged detail taken substantially on line 55 of Fig. 4-;

Fig. 6 is an enlarged detail, being a sectional view taken substantiallyon line 66 of Fig. 4;

Fig. 7 is a rear elevation of the rear pontion of the machine, showingthe covering wheels at one side in abnormal raised position relative tothe covering wheels at the opposite side, the operating means for: theseed dropping: mechanism being omitted for clearness .of illustration;

Fig. 8 is adetailed view, being, substantially asection taken on line 88of Fig; 4:;

Figs 9 is a side view of one of the brackets by which the seed hoppersare supported in position; and

Fig: 10 is a fragmentary view illustrating. the bracket which the clutchand some of itscooperating parts is supported upon the framework.

Referring to the several figures of the drawings, in whichcorrespondingparts are indicated by the same reference characters:-

l516 indicate heavy plow beams having plow bodies or furrow openers 17of any suitable type mounted up-ontheir rear end portions. As is bestshown in Fig. l=the forward end portions of the plow beams 15-16 arefirmly joined together by means of transversely extending bars 1819which are secured together by means of bolts: 20 passing throughsuitable registering openings, one of the bars 18-19 being. providedwith a plurality of openings whereby the plow beams 1516 may be adjustedlaterally relative to each other. Diagonally disposed brace bars '21 areprovidedserving to assist in bracing the plow beams l516 relative toeach other. The beams 1516 are further connected together bytransversely extending bars 22 23 which arev also adjustabl-y connectedat their inner end portions soas to permit lateral adjustment of thebeams.

The beams l516 are still further connected,

ed in transverse position upon the'framework above described,being'journaled near their inner ends by means of brackets 28-29respectively carried by the bars 22-23 and being journaled upon thebeams 1516 respectively by means of brackets 30 (see Figs. 4 and 10).Horizontally extending outer end portions of the axle members 26-27 areprovided with carrying wheels 3132 respectively. Each of the axlemembers 26-27 is provided with an arm 33 rising therefrom, the upper endportion of which is 7 connected by means of a coiled spring 34 with theforward end portion of the framework, the springs 34 serving to assistin the operation of' lowering the carrying wheels 3132 relative to theframework as hereinafter described for raising the plow bodies 17 out ofcontact with the ground.

The means provided for turning the axle members 2627 relative to theframework for moving the carrying wheels 3132 up and down relative tothe frame comprises a rock-shaft 35 connected with the axle members. Theconnection of the rock-shaft 35 g at each side of the machine with theaxle member at that side comprises an army 36 fixedly mounted upon therock-shaft and provided with a rack bar 37 at its upper end. Bellcranklevers 38 are pivotally mounted upon the arms 36, the rearwardlyextending arms of such bellcrank levers being connected by means oflinks 39 with the axle members 2627 as best shown in Fig. 4. Thebellcrank levers 38 are adapted to be turned upon their pivots by meansof lever extensions 40 which are adapted to be adjustably secured to therack bars 37 in any suitable manner. By the manipulation of the levers40, the position at which the rearwardly extending arms of the bellcranklevers 38 stand relative to the arms 36 may be adjusted.

The means for turning the rock-shaft for swinging the levers 38 and thusadjusting the axle members 2627 and the carry ing wheels 31-32 mountedthereon comprises'a crank arm 41 formed. upon one end.

portion of therock-shaft. The outer end of the crank arm portion 41 isconnected by means of a link 42 with a plate 43 rotatable about an axle44 fixedly mounted upon the framework. The plate43 is adapted to begiven a partial rotation about the axle 44 by a clutch mechanism of anysuitable type by ing either to move the plow body 17 upwhich such plateis connected as desired with a gear 45 which is driven continuouslyduring the forward movement of the machine by means of a chain 46connecting such gear with a gear 47 which is connected with the carryingwheel 32. The clutch mechanism comprises a roller 48 revolubly mountedupon an arm 49 which is adapted to be swung toward the rear by a pullupon a cord 50 connected to, the upper end of an arm or lever 51. Theparts of the clutch as shown in the drawings are of the type illustratedin my Letters Patent No. 1,163,143, granted on December 7, 1915,covering improvements in gang plows. As is readilyunderstood in the art,upon a movement of the roller 48 to the right in Figs. 1 and 2, theclutch mechanism is thrown intooperation for giving the plate 43 asingle half revolution, at the end of which the'clutch is again thrownout of operation. Inasmuch as the clutch in and of itself forms no partof my present invention, it is believed to be unnecessary to furtherdescribe the same herein. It will be understood that, with the car 45in'constant rotation by reason of the orward movement of the plow, whenthe roller 48 is given a backward movement, the plate 43 will be given ahalf rotation, servward out of operative engagement with the ground fromthe position shown in Fig. 1 to the position shown in Fig. 2, or to givesuch plow body the reverse movement, depending upon the originalposition of the plow body. Each of the plow beams 1516 is provided withseed dropping mechanisms of an approved type. In the construction shownthe seed dropping mechanism comprises a hopper 52 mounted upon thebracket 25 above the plow body 17. Each of the two 7 hoppers shown inthe drawingsis provided with suitable seed dropping parts of anyapproved type adapted to be operated by a 0 shaft 53. This shaft in turnis driven by a sprocket chain 54 mounted upon a gear 55 which isrotatablewith the gear 45 herein before referred to, the connection ofthe chain 54 with the shaft 53 being effected through the medium of agear 56 loosely mounted upon the shaft The shaft 53 and the gear 56 areprovided with intermeshing clutch members 57 (see Figs. 4 and 6) bywhich the shaft is adapted to be driven by the gear 56, a spring 58being provided 7 for holding the gear 56 yieldingly in position foroperative engagement of the clutch members. Means are provided. forthrowing the clutch members 57 out of engagement for stopping therotation of the shaft 53, 'such means comprising a cam yoke 59 connectedby means of a link 60 with an arm 61 rising from the axle member 27 (seeFig. 10). The arrangement is such igssegsir that, when the axle member27is moved for raising the plow body 17 out-of= engagement with the"ground; the link *is thrownforward by the arm- 61-, servin'gto force thecamyoke 59 between oppositely-disposed portions of the-elutch'members 57for forcing the gear 56 to one side against the actioir of the spring58-, serving to stop the rotation'of'the shaft53. It is thus seen thatwhen the plow bodies 17 are thrown out of Operation, the seedd-ropping'mechanism is at thesame time thrown out of Operation.

At the point where the seedis discharged from the hopper 52, a suitableobservation opening is provided as shown at 62 in Fig. 1 whereby theoperator can observe the number of kernels dropped. The seed from thehopper 52 falls into a pipe or duct 63 (see Fig. 9) from which it passesto a shoe 64: through which it drops into thefurrow. Disks 65 arerev-olublymounted in diagonal position adjacent to the shoe 64 forcovering the grain in the furrows, such disks being providedwith springs66 which serve to hold them yieldingly in the desired operativepositionrelative to the shoe 6%. In the construction shown colters 67 ofany suitable type are-mounted upon the plow beams in front of the plowbodies 17.

Means is provided for pressing the soil firmly down upon the seed in thefurrow and for raising the rear ends of the plow beams 1516-when theplow bodies are be ing raised out of operative position. This meanscomprises a pair of pressure wheels 68 mounted upon diagonally-disposedaxes upon-axlemembers 69 which are adapted to revolve upon vertical axesrelative to bracket members 70 mounted as hereinafter described. Theaxle members 69 are provided with brackets 71 fixed thereon havingrounded upper ends working in correspondingly-shaped recesses in thelower ends of the brackets 70, as is shown in Fig. 3. The brackets 70are connected with the framework of the machine by means oflongitudinally-extending bars 72 which are pivotally mounted at theirforward ends upon the plow beams 1516 in front of the seedingmechanisms. The bars 72 are mounted on the plow beams in theconstruction shown by means of bosses 7 3-74, the bosses 74Ebeing formedwith the brackets 30, as is best shownin Fig. 10; As is best'shown-inFigs. 1 and 2, each of the bars 72 is provided with a slide-block 75fixedly mounted upon its inner face, the slide-blocks 75 being inengagement with curved ribs 76 carried by the brackets 25 (see Fig. 9).The slide-blocks 7 5 serve to support the bars 72 in proper positionrelative'to the plow bodies while at vthe same time permitting. the bars72 to swing vertically about'their horizontal axis defined'by the bosses7 37 4:. By this means the pressure wheels 68 are maintained in properposition transversely ofthe machine relative to the furrow and the seeddropped therein;

The means for raising the rear ends of the plow beams relative to thepressure wheels 68 as above suggested, comprises atransversely-extending bar 76 mounted in hangers 77 carried by the innerlongitudinallyextending bars 72. At about its middle point the bar 76 isprovided-with an-arm 78 fixedlymounted thereon and pivotally connectedat its upper end with a bellcrank lever7 9 which is fulcrumed upon abracket 80 carried by the transversely-extending bar 24. The other armof the bellcrank lever 75) is pivotally connected by means of a link 81with an arm 82 fixedly mounted upon the axle member 27, a slot 83 beingprovided in the connection between the link 81 and the arm 82 to providea certain desired play between" such parts. In the construction shown,the bellcrank lever 7 9 is in'the form of a triangular bracket, but'itwillbe understood that this is not essential; As will be readilyunderstood, particularly from an inspection of Fig. 8, when the shaft 27is moved in counterclockwise direction in Fig. 8 for raising the plowbodies from the ground, as hereinbefore explained, the arm 82 willlikewise be given a movement in counterclockwise direction in saidfigure, serving after the play provided by the slot 83 has been taken upto move the link 81 toward the left in Figs. 4: and 8 for giving thebellcrank lever 79 a movement in clockwise direction in Fig. 8. Thismovement of the lever 79 serves to raise the bar 24: relative to the bar7 6 serving thus to raise the rear end portions of the beams 15-16relative to the pressure wheels 68. As is best shown ill-Fig. 8, thebracket 80 is provided with a set screw 8% for limiting its movement incounterclockwise direction in said figure. The downward movement of thebar 24 relative to the bar 76 is thus limited, serving thus to limit thedownward movement of the rear ends of the beams 15-16 relative to thepressure wheels 68. Inasmuch as the vertical movement of the forwardend-portions of'the beams 1516 is efiected independently of the pressurewheels 68, it

will'be seen that means is provided in this way for controlling thesuction of the plow body. By the provision of the slot 83 in the forwardend of the link 81 an adjustment of either of the axle members 2627relative to the rock-shaft 35 through the medium of one of the levers 40may be effected for varying the depth of the plowing of one of the plowbodies 17 without afiecting the position of the lever 79.

' By reason of the form of connection employed between the pressurewheels 68 and the plow beams 1516 through the medium of thetransversely-extendingbar 7 6", the

pressure wheels 68 at either side of the machine are free to move upwardrelative to the pressure wheels at the opposite side of the machine, theconnection of the bar 7 6" with the hangers 77 and with the lever 7 9through the medium of the link 78 being made loose enough to permit ofthe desired play between the parts. In this way the framework and theoperating parts taken as whole are supported evenly by the forwardcarryingwheels 3132 and by the pressure wheels 68 regardless ofvariations in the surface conformation. I

What I claim as my invention and-desire to secure by Letters Patent,is--- I 1. In a. lister plow, the combination of a frame, a plow-bodymounted on said frame, axle members revolubly mounted on said frame onthe same transversely-extending axis, carryingwheels journaled atopposite sides of the frame on crank portions of said axle membersrespectively, a transverselyextending IOCl-Sl12lft, arms mounted on saidrock-shaft, links connecting said arms with the crank arms of said axlemembers, means for adjusting said arms radially about said rock-shaft,and means for rotating said rock-shaft for turning said axle members andeffecting a vertical adjustment of said carrying wheels relative to saidframe.

2. In a lister plow, the combination of a frame, a plow-body mounted onsaid frame, axle members revolubly mounted on said frame on the sametransversely-extending axis, carrying wheels journaled at opposite sidesof the frame on crank portions of said axle members respectively, atransverselyextending rock-shaft, arms pivotally mounted thereon, leversconnected with said arms, means for holding. said levers in adjustedposition radially relativ to said rock-shaft, links connecting said armswith the crank arms of said axle members, and means for rotating saidrock-shaft for turning said axle members and effecting a verticaladjustment of said carrying wheels relative to said frame.

3. In a plow, the combination of two plow-beams, transversely-extendingand ad justable bars connected with said beams for holding said beams indifferent adjusted positions, axle members revolubly mounted on saidbeams transversely thereof and also revolubly supported by said bars,carrying wheels journaled on. offset portions of said axle members, andplow-bodies carried by said plow-beams.

4.111 a plow, the combination of two plow-beams, transversely-extendingand adjustable bars connected with said beams for holding said beams indifferent adjusted positions, axle members revolubly mounted on saidbeams transversely thereof and also revolubly supported by saidbars,carrying wheels journaled on offset portions of said axle members, andplow-bodies carried by said plow-beams, said axle members being arrangedin alinement with each other between their offset portions.

5. In a lister plow, the combination of a frame, carrying wheels mountedthereon near nears its forward end portion, plowbodies carried by saidframe at opposite sides thereof, other carrying wheels, means connectingsaid last-named carrying Wheels with said frame at opposite sidesthereof in rear of said plowbodies and holding said wheels in positionindependently of each other laterally of the frame, a transverse baroperatively connected at its end por-v tions with said rear wheels, andconnections between said transverse bar and said frame for supporting aportion of the weight'of the frame from said rear wheels.

6. In a lister plow, the combination of a frame, carrying wheels mountedthereon near its forward end portion, plow-bodies carried by said frameat opposite sides thereof, other carrying wheels, means connecting saidlast-named carrying wheels with said frame at opposite sides thereof inrear of said plow-bodies and holding said wheels in positionindependently of each other laterally of the frame, a transverse barhaving loose operative connection with said rear wheels, and meansconnecting an intermediate portion of said transverse bar with saidframe permitting the rear wheels at opposite sides tohave verticalmovement relativeto each other.

7. In a lister plow, the combination of a frame, carryingwheels mountedthereon near its forward end portion, plow-bodies carried by said frameat opposite sides thereof, other carrying wheels connected with saidframe in rear of said plow-bodies and movable vertically relative tosaid frame but held independently of each other against movementlaterally, and connections between said second named wheels and saidframe adapted to support a portion of the weight of the frame from saidwheels but permitting the second named wheels to have verti cal movementrelative to each other.

8. In a lister plow, the combination of a frame, carrying wheels mountedthereon near its forward end portion, plow-bodies carried by said frameat opposite sides there- 7 of said transverse bar with said frame per-'mittingv the said second named wheels at opposite sides to have verticalmovement j relative to each other.

9. In a lister plow, the combination of a frame, carrying wheels mountedthereon near. its forward end portion, plow-bodies carried ly said frameat opposite sides thereof. arms pivotal-1y mounted on transverse axes atopposite sides of said frame. carrying wheels journaled on the rear endportions of said arms, means engaging said arms serving to hold themagainst movement laterally of the frame, and connections between saidrear wheels and said frame adapted to support a portion of the weight ofthe frame from said wheels but'permitting the wheels at opposite sidesto have vertical movement relative to each other.

10. In a lister plow, the combination of a frame, carrying wheelsmounted thereon near its forward end portion, plow-bodies carried bysaid frame at opposite sides thereof, a pair of arms pivotally mountedon trlnsverse axes at each side of said frame, the arms at each sideofthe frame having sliding engagement with fixed parts for holding thearms against lateral movement, carrying wheels journaled on the rear endportions of said arms, and connections between said rear wheels and saidframe adapted to support a portion of the weight of the frame from saidwheels but permitting the wheels at opposite sides to have verticalmovement relative to each other.

11. In a lister plow, the combination of a frame, carrying wheelsmounted thereon near its forward end portion, plow-bodies carried bysaid frame at opposite sides thereof, other carrying wheels mounted onsaid frame in rear of said plow-bodies and movable vertically relativethereto, a transverse bar having loose operative connections at its endportions with said rear wheels, and means acting upon an intermediatepor tion of said transverse bar for moving said frame verticallyrelative thereto but permitting the rear wheels at one side to movevertically relative to the wheels at the op posite side.

12. In a lister plow, the combination of a frame, carrying wheelsmounted thereon and movable vertically relative thereto, plow-bodiescarried by said frame at opposite sides thereof, other carrying wheelsmounted on said frame in rear of said plowbodies and movable verticallyrelative thereto, a transverse bar having loose operative connections atits end portions with said rear carrying wheels, and means actuated by avertical movement of said first-named carrying wheels relative to theframe for moving the rear end portion of said frame vertically relativeto said transverse bar but permitting the rear wheels at opposite sidesto move vertically relative to each other.

13. In a lister plow, the combination of a frame, carrying wheelsmounted thereon and movable vertically relative thereto, plow-bodiescarried by said frame at opposite sides thereof, other carrying wheelsmounted on said frame in rear of said plowbodies and movable verticallyrelative thereto, a transverse bar having loose operative connections atits end portions with said rear carrying wheels, a bell-crank leverhaving pivotal connection with both said transverse bar and said framenear its rear end portion, and means actuated by a vertical movement ofsaid first-named carrying wheels relative to the frame for turning saidbell-crank lever serving to move said frame vertically relative to saidrear wheels but permitting the rear wheels at opposite sides to movevertically relative to each other.

14. In a lister plow, the combination of a frame, carrying wheelsmounted thereon near its forward end portion, plow-bodies carried bysaid frame at oposite sides thereof, other carrying wheels mounted onsaid frame in rear of said plow-bodies and movable vertically relativethereto, a transverse bar having loose operative connections at its endportions with said rear wheels, means acting upon an intermediateportion of said transverse bar for moving said frame Vertically relativethereto but serving to permit the rear wheels at one side to movevertically relative to those at the opposite side, and adjustable meansfor limiting the clownward movement of the frame relative to said rearwheels for regulating the suction of the plow-bodies.

15. In a lister plow, the combination of a frame, carrying wheelsmounted thereon and movable vertically relative thereto, plow-bodiescarried by said frame at opposite sides thereof, other carrying wheelsmounted on said frame in rear of said plowbodies and movable verticallyrelative thereto, a transverse bar having loose operative connections atits end portions with said rear carrying wheels, a bell-crank leverhaving pivotal connection with both said transverse bar and said framenear its rear end portion, means actuated by a vertical movement of saidfirst-named carrying wheels relative to the frame for turning saidbell-crank lever serving to move said frame vertically relative to saidrear wheels but permitting the rear wheels at opposite sides to movevertically relative to each other, and adjustable means for limiting themovement of said lever relative to the frame serving to limit thedownward movement of the frame relative to the rear wheels forregulating the suction of the plow-bodies.

16. In a lister plow, the combination of a frame, carrying wheelsmounted thereon and movable vertically relative thereto, plow-bodiescarried by said frame at opposite sides thereof, other carrying Wheelsmounted on sand frame 111 rear of sald plowbodies and movable verticallyrelative thereto. a transverse bar having loose operative connections atits end portions With said rear carrying Wheels, a bell-crank leverhaving pivotal connection With both said transverse bar and said framenear its rear end portion, means actuated by a vertical movement ofvsaid first-named carrying Wheels relative to the frame for turning saidbell-crank lever serving to move said frame vertically relative to saidrear Wheels but permitting the rear Wheels at opposite sides to movevertically relative to each other, and a set screw adjustably mounted insaid frame in position to engage said bellcrank lever for limiting thedownward movement of the frame relative to the rear Wheels forregulating the suction of the plow-bodies.

WILLIAM S. GRAHAM.

Copies of this patent may be obtained for five cents each, by addressingthe Gommissioner of Batents.

Washington, D. 0. I

